5. A building needs 30 [MWh] electricity annually for appliances, and its annual heating demand is 40 [MWh]. The building is connected to a heating grid (neglect the losses in the grid), where the heat comes from the waste heat from the power plant delivering the electricity to the building. What is the amount of primary energy used annually by the building? The power plant is combustion engine based, and has an electrical efficiency of 0.35 and a thermal efficiency of 0.55. (multiple choice, one answer)

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
icon
Related questions
Question
5. A building needs 30 [MWh] electricity annually for appliances, and its annual heating demand is 40 [MWh].
The building is connected to a heating grid (neglect the losses in the grid), where the heat comes from the
waste heat from the power plant delivering the electricity to the building. What is the amount of primary
energy used annually by the building? The power plant is combustion engine based, and has an electrical
efficiency of 0.35 and a thermal efficiency of 0.55. (multiple choice, one answer)
25 [MWh]
57 [MWh]
63 [MWh]
86 [MWh]
177 [MWh]
Transcribed Image Text:5. A building needs 30 [MWh] electricity annually for appliances, and its annual heating demand is 40 [MWh]. The building is connected to a heating grid (neglect the losses in the grid), where the heat comes from the waste heat from the power plant delivering the electricity to the building. What is the amount of primary energy used annually by the building? The power plant is combustion engine based, and has an electrical efficiency of 0.35 and a thermal efficiency of 0.55. (multiple choice, one answer) 25 [MWh] 57 [MWh] 63 [MWh] 86 [MWh] 177 [MWh]
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Applied Fluid Mechanics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY